Thanks so much!
No, the diaper cake wasn't hard to cake. Maybe frustrating, but not really hard. It took less than an hour. Since I didn't have round cake pans to put my spirals of diapers in to hold them up, I had to balance them and then wrap rubberband [or elastic, depending on circumference of the tier.] My boyfriend helped me make it, and I'd definetely recommend an extra set of hands!!!
The pattern is here:http://www.keepsakequilting.com/KQShopping/partsview.asp?action=lookup&partno=2859&subject=&catpos=
I didn't really have trouble sewing it, but I did it by hand. I had more trouble cutting the fabric. . . guess I'm not really used to it. Plus, my cats all decided to "help" me/
Thanks for the comments, guys! I really aprreciate it.